For firmware that supports it, allow multiple SCM calls to be passed down to it by removing the serialization lock in the SCM driver. There is a patch already [1] to convert the bindings to YAML. I will make a patch against it when it gets accepted. [1] https://lore.kernel.org/linux-arm-msm/20220626183247.142776-3-david@xxxxxxx/ Signed-off-by: Guru Das Srinagesh <quic_gurus@xxxxxxxxxxx> --- Documentation/devicetree/bindings/firmware/qcom,scm.txt | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/firmware/qcom,scm.txt b/Documentation/devicetree/bindings/firmware/qcom,scm.txt index 0f4e5ab..8a68018 100644 --- a/Documentation/devicetree/bindings/firmware/qcom,scm.txt +++ b/Documentation/devicetree/bindings/firmware/qcom,scm.txt @@ -43,6 +43,8 @@ Required properties: clock and "bus" for the bus clock per the requirements of the compatible. - qcom,dload-mode: phandle to the TCSR hardware block and offset of the download mode control register (optional) +- allow-multi-call: Specify this to remove SCM call serialization. Need to + ensure that the firmware being used supports this. Example for MSM8916: -- 2.7.4
